129052998 has 12 divisors (see below), whose sum is σ = 279614868. Its totient is φ = 43017660.

The previous prime is 129052993. The next prime is 129053017. The reversal of 129052998 is 899250921.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129052991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3584788 + ... + 3584823.

It is an arithmetic number, because the mean of its divisors is an integer number (23301239).

Almost surely, 2^129052998 is an apocalyptic number.

129052998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

129052998 is an abundant number, since it is smaller than the sum of its proper divisors (150561870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129052998 is a wasteful number, since it uses less digits than its factorization.

129052998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7169619 (or 7169616 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 129052998 is about 11360.1495588747. The cubic root of 129052998 is about 505.3466208374.

The spelling of 129052998 in words is "one hundred twenty-nine million, fifty-two thousand, nine hundred ninety-eight".